2 U disk, the computer did not show a connection, for the same test a few.

The two U disk has been used in fine, so how this has been?

2 months the situation a little different, is a plug to connect computers have been lit
there is a flash The flash, optical comparison weak

how to do ah?

Poisoning is not it? Only such a situation .I play so many U disk has never encountered a broken-off ..feel the system is broken, do not recognize disk u, u-heavy disk drive you to try to replace a USB interface to see if normal? Will say U plate inserted on the back of the host interface to see.U disk does not work? U disk is due to make semiconductor materials, so afraid of relatively static, hand contact, hot-swappable could cause damage, be careful next time ah U disk Does not work, or your computer not related to the use of U Pan permission.